Originally Posted by
ant_west
The Lounge at St Pancras is quite nice and I'm going to disagree with
Wong Jnr 
and say it is bigger than Waterloo. The trick here is that most people don't notice the lounge is on 2 levels so only stay on the ground floor and don't head up to the upper floor which is usually very quiet and much nicer!
I'll be the one that hasn't ventured upstairs then....

I guess it's that long staircase right at the far end. Nothing ventured nothing gained

Will need to check it out next time